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nitrogen fixer

any of various microorganisms in the soil involved in the process of nitrogen fixation.
Origin of nitrogen fixer
1910-15 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for nitrogen fixer
  • The crust is a nitrogen fixer, thus aids in plant growth.
  • Alder is also a natural nitrogen fixer, and contributes directly to stream productivity.
  • The goal is to find a good nitrogen fixer that doesn't grow much.
  • The plant is a nitrogen fixer and adaptable to poor infertile soils in full sun to part shade.
  • The red alder is a nitrogen fixer and will help build soils with added nutrients and increased micro and macro invertebrates.
  • Another great benefit of soy is that because it is a legume, it is a nitrogen fixer.

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